Re: In-home Air Pollution Heightens Asthma Symptoms

[Guest guest]

KC,

I posted this on the IAQ bulletin board but I'll put it here as well:

All:

A paper to appear in Environmental Health Perspectives ( " In-home

particle concentrations and childhood asthma morbidity. " EHP

doi:10.1289/ehp.11770) described below purports to show a relationship

between outdoor particulate matter (PM) and asthma in inner city

children.

The authors note that " While the present study cannot delineate which

sources of PM measured indoors were responsible for the observed

health effects, these

findings suggest that improving air quality in the indoor environment

with a strategy that reduces PM concentration may improve asthma

health, " but state that " Although analyzing the composition of the

particles and investigating the mechanism by which PM exacerbates

asthma is beyond the scope of this present investigation. . . . "

The authors imply that the indoor PM is a function of the outdoor PM.

There are several flaws in the study not the least of which is the

fact that outdoor PM was measured up to two miles away from the home

sites studied.

It is common knowledge that particles, particularly indoor allegens

cause asthma symptoms. Unfortunately, this study tries to tie indoor

PM sources to outdoor sources without ever looking at possible indoor

sources.

May

May Indoor Air Investigations LLC

Tyngsborough, MA

www.mayindoorair.com

www.myhouseiskillingme.com

978-649-1055

> POSTED BY: \ " TIGERPAW2C\ " TIGERPAW2C@...

> TIGERPAW2C

>

> Tue Dec 16, 2008 4:40 pm (PST)

>

> In-home Air Pollution Heightens Asthma Symptoms

> by environmentalhealthnews.org

>

> Dec 16, 2008 – McCormack MC, PN Breysse, EC Matsui, NN Hansel, D

> , J Curtin-Brosnan, P Eggleston and GB Diette. 2008. In-home

> particle concentrations and childhood asthma morbidity.

> Environmental Health Perspectives doi:10.1289/ehp.11770.

>

> Synopsis by D. Laiosa

>

> A recent study confirms and broadens our understanding of asthma by

> showing the respiratory disease is highly affected by particulate

> matter.

>

> Full PDF copy:

> http://www.ehponline.org/members/2008/11770/11770.pdf[83]

>